package org.example.mapper;

import org.apache.ibatis.annotations.*;
import org.example.pojo.Clazz;
import org.example.pojo.ClazzQueryParam;

import java.util.List;

@Mapper
public interface ClazzMapper {
    public List<Clazz> list(ClazzQueryParam clazzQueryParam);
    @Delete("delete from clazz where id=#{id}")
    void deleteById(Integer id);
    @Insert("insert into clazz(name,room,begin_date,end_date,master_id,subject,create_time,update_time) values(#{name},#{room},#{beginDate},#{endDate},#{masterId},#{subject},#{createTime},#{updateTime})")
    void add(Clazz clazz);
    @Select("select * from clazz where id=#{id}")
    Clazz getById(Integer id);
    @Update("update  clazz set name=#{name},room=#{room},begin_date=#{beginDate},end_date=#{endDate},master_id=#{masterId},subject=#{subject},update_time=#{updateTime} where id=#{id}")
    void update(Clazz clazz);
    @Select("select * from clazz")
    List<Clazz> findAll();
    @Select("select count(*) from student where clazz_id=#{id} ")
    Integer find(Integer id);
}
